4609649 has 4 divisors (see below), whose sum is σ = 5028720. Its totient is φ = 4190580.

The previous prime is 4609621. The next prime is 4609651. The reversal of 4609649 is 9469064.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4609649 - 2⁸ = 4609393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4609699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209519 + ... + 209540.

It is an arithmetic number, because the mean of its divisors is an integer number (1257180).

Almost surely, 2^4609649 is an apocalyptic number.

It is an amenable number.

4609649 is a deficient number, since it is larger than the sum of its proper divisors (419071).

4609649 is a wasteful number, since it uses less digits than its factorization.

4609649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419070.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 4609649 is about 2147.0093153035. The cubic root of 4609649 is about 166.4265533508.

The spelling of 4609649 in words is "four million, six hundred nine thousand, six hundred forty-nine".